Colletotrichum (anamorphic genus)

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Colletotrichum - A-F) disease symptoms, G-R) sexual stages (click on image to enlarge it)
Author(s): Y. Marin-Felix, J.Z. Groenewald, L. Cai, Q. Chen, S. Marincowitz, I. Barnes, K. Bensch, U. Braun, E. Camporesi, U. Damm, Z.W. de Beer, A. Dissanayake, J. Edwards, A. Giraldo, M. Hernández-Restrepo, K. D. Hyde, R. S. Jayawardena, L. Lombard and P.W. Crous
Source: Studies in Mycology (2017), vol. 86, p. 140

Colletotrichum Corda 1831

Colletotrichum is a large genus of fungi and includes many important plant pathogens which primarily cause anthracnose diseases with clearly defined, often sunken sesions. Alternatively, infected plants can develop stem end rot, diebacks or seedlings blights. Fruits are commonly infected by pre- and post-harvest diseases. Some species have a wide host range while others predominantly infect a smaller group of plants (e.g. grasses or legumes) or even plants from a specific genus.

The conidia are hyaline, oval to elyptical in shape. These are formed in small fruiting bodies (acervuli) at the surface of the infected plants. The acervuli are often dark and contain black spines (setae). The sexual forms have been described under the genus Glomerella Spauld. & H. Schrenk, 1903. Molecular taxonomic studies have shown that several of the most common plant pathogens of this genus, like C. acutatum or C gloeosporioides are complexes of morphologically indistinguishable species.

Type species: Colletotrichum lineola Corda 1832

Economically, the most important species of plant pathogens are:

For other species see the list below.

For a taxonomic review of the genus see Marin-Felix et al. (2017).

The following species are currently entered under the genus Colletotrichum: